xmonad-config/lib/Xmobar/Plugins/BacklightCommon.hs

29 lines
878 B
Haskell

-- Common backlight plugin bits
--
-- Use the custom DBus interface exported by the XMonad process so I can react
-- to signals spawned by commands
module Xmobar.Plugins.BacklightCommon (startBacklight) where
import DBus
import Data.Internal.DBus
import RIO
import qualified RIO.Text as T
import Xmobar.Plugins.Common
startBacklight
:: (MonadUnliftIO m, RealFrac a)
=> Maybe BusName
-> Maybe FilePath
-> ((Maybe a -> DIO SimpleApp SesClient ()) -> DIO SimpleApp SesClient ())
-> DIO SimpleApp SesClient (Maybe a)
-> T.Text
-> Callback
-> m ()
startBacklight n name matchSignal callGetBrightness icon cb = do
withDBusClientConnection cb n name $ \c -> withDIO c $ do
matchSignal dpy
dpy =<< callGetBrightness
where
formatBrightness b = return $ T.concat [icon, T.pack $ show (round b :: Integer), "%"]
dpy = displayMaybe cb formatBrightness